1687
8
49
922
3
49
2235
0
49
2811
0
49
867
0
49
533
0
49
1826
11
49
1079
2
49
1783
0
49
1166
2
49
1373
14
49
1801
1
48
1765
2
48
1470
0
48
6842
0
48
2182
0
48
686
0
48
2035
4
48
2520
2
48
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Keyword(s): #数学